Julius gtwtheb



J. GNTHER.

. LUBRIGATOR.

(No Model.)

No. 321,597. Patented July 7, 1885.

wim/5885s UNITED STATns aTnNT @Tirion JULiUs GNTHER, or Nairn-L, rnussm,GERMANY.

LU BRlCATO R.

SPECIFICATION forming part of Letters Patent No. 321,597, dated July 7,1885.

Application led Marc-h 19, 1855. (No model.) Patented in Belgium March'1, 1885, No. 68,120.

To all whom t may concern:

Be it known that I, JULIUs GNTHER, of Nakel, in the Kingdom of Prussiaand Empire of Germany, have invented certain new and useful Improvementsin Lubricators, of which the following is a specification.

This invention has reference to an improved lubricator of that class inwhich grease or other consistent lubricating substances are used, and inwhich a gradual reduction ol' pressure on the lubricant is produced asthe quantity of the same is decreased.

In the accompanying drawings, Figure l represents a vertical centralsection of my iinproved lubricator. Fig. 2 is a plan of Fig. l. Figs. 3and 4 are a sectional side elevation and a plan of a modifiedconstruction.

Similar letters of reference indicate corresponding parts. 4

In the drawings, a represents a lubricatingcup of cylindrical shape,which is filled with grease or other lubricant oi' suitable consistency.A weighted piston, b, presses on the upper part of the lubricant. Thepistoirrod c of the piston b is connected, by a pivot, d, and linke,with a weighted lever-arm, f, of angular shape, that is supported by afulcrum, g, on a recessed standard, Il, attached to the cup a. To thelower end of the angular lever f is applied an adjustable weight, z', bywhich the piston l is counterbalanced to some extent. The exact degreeof counterbalancing of the same is obtained by adjusting the weight atthe lower part of the lever f. The piston b itself is weighted to suchan extent that a suffi cient pressure is exerted on the lubricatingmaterial in the cup. As the quantity of lubricating material in the cupis diminished the piston moves downward, while the lower end oi' thelever f is moved away from the cup, so that thereby the counterbalancingaction of the weight on the piston is gradually increased according asthe quantity of grease in the cup is diminished. The pressure ofthepiston on the lubricating material is reduced by the counterbalancingdevice in proportion as the quantity of lubricating material, and withit the friction with the cup, is dimin ished, so that the grease isuniformly supplied through the dischargeopening of the cup to the placeof use.

The lever f is made of two parts, which are connected by clamp-screw m,by which the angle of the lever f can be altered.

ln place of the adjustable weight shown in Fig. l, alever, f, with afixed weight can be used, as in Fig. 3. The leverf is in this caseconnected with a piston, i, that is guided in a fixed cylindricalcasing, l. A spiral spring, lc, is attached to the piston t" and casingZ, and serves to exert an increased tension on the lever fthe lower thepiston b sinks in the cup a.

For filling the cup the piston is removed, together with the weightedlever or spring, and replaced after iilling. The lubricator works in areliable economical manner, as the supply of lubricating material isuniform, until the same is entirely consumed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination oi' an oil-cup, a piston movabletherein, and a fulcrumed jointed weighted lever connected to thepiston-rod of said piston, one member of said lever being adjustablyconnected to the other member, substantially as described.

2. The combination of an oil-cup, a piston movable therein, a pivotedweighted lever connected with the piston-rod of said piston, anadjustable extension connected with said lever, and a weight adjustableon said extension, substantially as described.

3. The combination of an oil-cup, a piston movable therein, a fulcrumedweighted lever, a bifurcated link connecting one end of said lever withthe rod of said piston, and a weighted extension adjustably connected tothe other end of said lever, substantially as described.

4. The combination of the oilcup c, provided with the upright standardh, the piston b within said cup, provided with the rod c, a lever, f,pivoted in said standard, link e, connecting one end of said lever withsaid piston-rod, an adjustable extension connected with said lever bymeans of a set-screw, m, In testimony that I claim the foregoing as andthe Weight 'i on said extension, substanmy invention I have signed myname in prestally as described. ence of two subscribing Witnesses. 5.The combination, with an 0i1-eup, of :L 5 piston movable therein, afulerunied weighted v JULIUS GUN THER.

lever provided with :n slot, 2L piston-rod conneeted with said lever bymeans of a pin Vitnesses:

passing through said slot', and a weighted ex- RICHARD ZIEGER,

tension adjustably connected to said lever, THEO. v. VYNGAERT. 1osubstantially as described.

